Sealing structure of fresh air handling unit

Abstract

The utility model discloses a sealing structure of a fresh air handling unit, and relates to the technical field of fresh air equipment. According to the technical scheme, a machine body is included, a plurality of pipe bodies are arranged on the two sides of the machine body, sealing pieces are fixedly connected to the inner circumferential walls of the pipe bodies, the sections, in the height direction of the machine body, of the sealing pieces are in a circular ring shape, and the sections, in the length direction of the machine body, of the sealing pieces are in a plurality of continuous Z shapes; a plurality of supporting pieces are connected to the inner wall of the sealing piece in a sliding mode, and each supporting piece comprises a plurality of supporting pieces abutting against the peripheral wall of the pipeline and a fixing piece detachably connected with the pipe body. And the overall sealing effect of the structure is ensured.

Description

Technical Field

[0001] This utility model relates to the field of fresh air equipment technology, and more specifically, to the sealing structure of a fresh air unit. Background Technology

[0002] A fresh air handling unit is an air handling device used to centrally process outdoor fresh air. Outdoor fresh air enters the fresh air handling unit, is filtered by a filter, and then undergoes heat and humidity treatment by a surface heat exchanger. When the air humidity is lower than the set value, it can be humidified by a humidifier. The treated air is then delivered to the room by a blower.

[0003] After the duct is connected to the duct of the fresh air unit, it is sealed with sealant or tape to ensure a good seal between the duct and the fresh air unit. However, as the usage time increases, the adhesiveness of the tape will gradually decrease, and the fresh air unit will vibrate during use, causing the duct to shift. The displacement of the duct will also cause the part of the tape connected to the duct to deform, thus affecting the sealing effect of the tape on the duct and the fresh air unit.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sealing structure for fresh air handling units.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: the sealing structure of the fresh air unit includes a body, and several pipes are provided on both sides of the body. A sealing element is fixedly connected to the inner peripheral wall of the pipe. The cross-sectional shape of the sealing element along the height direction of the body is annular, and the cross-sectional shape of the sealing element along the length direction of the body is several continuous Z-shaped. Several supporting elements are slidably connected to the inner wall of the sealing element. The supporting elements include several supporting plates that abut against the outer peripheral wall of the pipe and a fixing plate that is detachably connected to the pipe.

[0007] The present invention is further configured such that the hardness of the side of the seal that is fixedly connected to the inner wall of the pipe and the side closer to the pipe is greater than the hardness of the stretchable part of the seal.

[0008] The present invention is further configured such that: a pad is fixedly connected to the end of the support plate away from the machine body, and the bottom surface of the pad and the bottom surface of the support plate are located on the same horizontal plane.

[0009] The present invention is further configured such that: the fixing plate is fixedly connected to the outer peripheral wall of the support plate, and the tube body has a fixing groove on the side away from the machine body that is detachably connected to the fixing plate.

[0010] The present invention is further configured such that: a sleeve is detachably connected to the outer peripheral wall of the pipe, and the diameter of the sleeve is larger than the inner diameter of the seal.

[0011] The present invention is further configured such that the outer peripheral wall of the support sheet and the stretchable part of the seal are both made of rubber.

[0012] In summary, this utility model has the following beneficial effects: By setting the cross-sectional shape of the sealing element, it can adapt to pipes of different sizes. For some pipes whose dimensions are much smaller than the pipe body size, workers can pull the sealing element during installation to increase its length, thereby achieving the snap-fit ​​of the pipe. On the other hand, if the machine body causes the pipe to vibrate during use, the force generated by the vibration of the machine body will be further dispersed under the action of the sealing plate and the support plate, preventing the pipe from shifting due to vibration. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure in this utility model where the pipe is removed;

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a cross-sectional view of the present invention with the pipes removed;

[0016] Figure 4 for Figure 3 Enlarged view of section B in the middle.

[0017] In the diagram: 1. Body; 2. Pipe; 3. Seal; 4. Support plate; 5. Fixing plate; 6. Gasket; 7. Tube sleeve. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] The sealing structure of the fresh air unit, such as Figure 1 , Figure 2 and Figure 4As shown, the device includes a body 1. Several pipes 2 are installed on both sides of the body 1. Pipes extend into the pipes 2 and connect to the body 1. A sealing element 3 is fixedly connected to the inner wall of the pipe 2. The sealing element 3 has a circular cross-sectional shape along the height direction of the body 1, thus ensuring a seal between the sealing element 3 and the inner wall of the pipe 2 and the outer circumference of the pipe, preventing air from escaping from the body 1 through the pipe 2. The sealing element 3 has a continuous Z-shaped cross-section along the length direction of the body 1, allowing it to stretch or contract along its thickness. When the body 1 vibrates during operation, the force generated by the vibration... The vibration will first be transmitted to the seal 3. Since the material of the seal 3 is rubber, the seal 3 will gradually disperse the force of the vibration of the machine body 1 under the action of elastic deformation, reducing the vibration force that the pipeline can receive, and preventing the pipeline from no longer adhering to the inner wall of the pipe body 2 due to vibration. At the same time, if the vibration of the machine body 1 is so strong that it is dispersed and transmitted to the pipeline through the seal 3, the seal 3 itself can undergo tensile deformation. Therefore, when the pipeline vibrates, the seal 3 will undergo tensile or compressive deformation along with the pipeline. The seal 3 is used to stably seal the pipe body 2.

[0020] like Figures 1-4 As shown, the hardness of the side of the seal 3 that is fixedly connected to the inner wall of the pipe body 2 and the side closer to the pipe are both greater than the hardness of the stretchable part of the seal 3. The side of the seal 3 that is fixedly connected to the inner wall of the pipe body 2 has no elastic deformation performance, which ensures the sealing effect between the seal 3 and the pipe body 2 and prevents the seal 3 from moving with the sealing end of the pipe body 2 when it deforms, thus affecting the sealing effect of the seal 3 on the pipe body 2. The side of the seal 3 that abuts against the pipe also has no elastic deformation performance, which ensures uniform force on the pipe at the contact part, and avoids deformation of the pipe due to uneven force on the pipe. Because the seal 3 has elastic deformation performance, when the pipe is not installed, the initial inner diameter of the seal 3 is smaller than the diameter of the pipe. Therefore, when the pipe is installed... Workers need to first pry open the seal 3 and then put the pipe into the seal 3. Although the pressure applied by the seal 3 to the pipe is not enough to deform the pipe, during the process of the seal 3 and the pipe abutting, the seal 3 will always apply pressure to the pipe under the action of elastic deformation, ensuring the stable fit between the seal 3 and the pipe. Before the worker installs the pipe into the pipe body 2, the pipe sleeve 7 is first put on the outer peripheral wall of the pipe. Since the pipe is usually a corrugated pipe, the pipe sleeve 7 can be put on the trough of the pipe without moving. When the pipe is inserted into the pipe body 2, since the diameter of the pipe sleeve 7 is larger than the inner diameter of the seal 3, the pipe sleeve 7 will abut against the inner wall of the seal 3 on the side closer to the machine body 1 and will not slide out of the pipe body 2, ensuring the stable fixation of the pipe in the pipe body 2.

[0021] like Figures 1-4As shown, several support members are slidably connected to the inner wall of the seal 3. These support members include several support plates 4 that abut against the outer peripheral wall of the pipe and a fixing plate 5 that is detachably connected to the pipe body 2. A pad 6 is fixedly connected to the side of the support plate 4 away from the machine body 1. The bottom surface of the pad 6 and the bottom surface of the support plate 4 are on the same horizontal plane. The pad increases the contact area between the support plate 4 and the pipe, preventing the pipe from bending downwards under gravity on the side closer to the machine body 1, thus preventing the portion of the pipe inside the pipe body 2 from bending as well. This keeps the portion of the pipe closer to the machine body 1 vertical and prevents air from escaping from the bend. Since the support plate 4 is slidably connected between the pipe and the seal 3, and the outer peripheral wall of the support plate 4 is wrapped with rubber, the two support plates 4 can... They can form a complete ring. When the support plate 4 slides between the seal 3 and the pipe, the support plate 4 will continue to seal the gap between the seal 3 and the pipe under the action of the rubber. If the worker needs to remove the pipe from the pipe body 2, he can operate the two support plates 4 to move them away from each other, and apply a pushing force to the seal 3 to move it away from the pipe, so that enough space is formed between the seals 3 for the pipe to come out. The fixing plate 5 is fixedly connected to the outer peripheral wall of the support plate 4. The side of the pipe body 2 away from the machine body 1 is provided with a fixing groove that can be detachably connected to the fixing plate 5. The fixing groove and the fixing plate 5 are used to fix the support plate 4, so as to prevent the vibration of the machine body 1 from causing the support plate 4 to shift and thus affecting its sealing effect on the pipe.

[0022] Working principle: When workers need to install pipes, first, the pipe sleeve 7 is placed on the outer wall of the pipe. Then, the sealing element 3 is opened and the pipe is inserted into the sealing element 3. The pipe is pulled outward so that the pipe sleeve 7 can stably abut against the side of the sealing element 3 closest to the body 1. Then, the support plate 4 is inserted between the pipe and the sealing element 3, and the pipe is placed on the pad 6. This achieves a seal between the pipe and the pipe body 2, preventing air leakage. When the pipe needs to be removed, the worker applies pressure to the two support plates 4, causing them to move away from each other. This increases the inner diameter of the sealing element 3, providing space for the pipe to come out of the sealing element 3.

[0023] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A sealed structure for a fresh air handling unit, comprising a body (1), wherein a plurality of pipes (2) are provided on both sides of the body (1), characterized in that: A sealing element (3) is fixedly connected to the inner circumferential wall of the pipe body (2). The cross-sectional shape of the sealing element (3) along the height direction of the machine body (1) is circular. The cross-sectional shape of the sealing element (3) along the length direction of the machine body (1) is several continuous Z-shaped shapes. Several supporting elements are slidably connected to the inner wall of the sealing element (3). The supporting elements include several supporting plates (4) that abut against the outer circumferential wall of the pipe and a fixing plate (5) that is detachably connected to the pipe body (2).

2. The sealing structure of the fresh air handling unit according to claim 1, characterized in that: The hardness of the side of the seal (3) that is fixedly connected to the inner wall of the pipe body (2) and the side closer to the pipe is greater than the hardness of the stretchable part of the seal (3).

3. The sealing structure of the fresh air handling unit according to claim 2, characterized in that: The support plate (4) is fixedly connected to a pad (6) at the end away from the body (1), and the bottom surface of the pad (6) and the bottom surface of the support plate (4) are on the same horizontal plane.

4. The sealing structure of the fresh air handling unit according to claim 1, characterized in that: The fixing plate (5) is fixedly connected to the outer peripheral wall of the support plate (4), and the tube (2) is provided with a fixing groove on the side away from the machine body (1) that can be detachably connected to the fixing plate (5).

5. The sealing structure of the fresh air handling unit according to claim 2, characterized in that: A sleeve (7) is detachably connected to the outer peripheral wall of the pipe, and the diameter of the sleeve (7) is larger than the inner diameter of the seal (3).

6. The sealing structure of the fresh air handling unit according to claim 2, characterized in that: The outer peripheral wall of the support plate (4) and the stretchable part of the seal (3) are both made of rubber.

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